diff options
Diffstat (limited to 'src/libstore')
| -rw-r--r-- | src/libstore/optimise-store.cc | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/src/libstore/optimise-store.cc b/src/libstore/optimise-store.cc index c05447f4a27f..b9b878d2a45b 100644 --- a/src/libstore/optimise-store.cc +++ b/src/libstore/optimise-store.cc @@ -102,11 +102,11 @@ void LocalStore::optimisePath_(OptimiseStats & stats, const Path & path) /* Nope, create a hard link in the links directory. */ makeMutable(path); MakeImmutable mk1(path); - - if (link(path.c_str(), linkPath.c_str()) == -1) + if (link(path.c_str(), linkPath.c_str()) == 0) return; + if (errno != EEXIST) throw SysError(format("cannot link `%1%' to `%2%'") % linkPath % path); - - return; + /* Fall through if another process created ‘linkPath’ before + we did. */ } /* Yes! We've seen a file with the same contents. Replace the |